Create MCQ on Current electricity of class 12 CBSE level and JEE mains

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The question is asking for the creation of multiple choice questions (MCQs) related to the topic of current electricity, specifically tailored for CBSE class 12 level and JEE Mains exam preparation.

Answer

MCQs on Current Electricity for Class 12 and JEE Mains.

[{"question":"A conductor of length L is connected to a DC voltage source. If the length of the conductor is doubled, keeping the voltage constant, what will happen to the current in the conductor?","options":["The current will be doubled.","The current will remain the same.","The current will be halved.","The current will become zero."],"correct_answer":"The current will be halved."},{"question":"In a series circuit with a battery of voltage V and three resistors of resistances R1, R2, and R3 connected in series, the current through the circuit is I. If an additional resistor R4 is added in series, what happens to the total current?","options":["The current will increase.","The current will decrease.","The current will remain the same.","The current will depend on the value of R4."],"correct_answer":"The current will decrease."},{"question":"Which of the following materials has the highest electrical conductivity?","options":["Copper","Aluminum","Silver","Gold"],"correct_answer":"Silver"},{"question":"What is the unit of resistivity?","options":["ohm","ohm-meter","ohm per meter","ohm per square meter"],"correct_answer":"ohm-meter"}]

Answer for screen readers

[{"question":"A conductor of length L is connected to a DC voltage source. If the length of the conductor is doubled, keeping the voltage constant, what will happen to the current in the conductor?","options":["The current will be doubled.","The current will remain the same.","The current will be halved.","The current will become zero."],"correct_answer":"The current will be halved."},{"question":"In a series circuit with a battery of voltage V and three resistors of resistances R1, R2, and R3 connected in series, the current through the circuit is I. If an additional resistor R4 is added in series, what happens to the total current?","options":["The current will increase.","The current will decrease.","The current will remain the same.","The current will depend on the value of R4."],"correct_answer":"The current will decrease."},{"question":"Which of the following materials has the highest electrical conductivity?","options":["Copper","Aluminum","Silver","Gold"],"correct_answer":"Silver"},{"question":"What is the unit of resistivity?","options":["ohm","ohm-meter","ohm per meter","ohm per square meter"],"correct_answer":"ohm-meter"}]

More Information

These MCQs cover essential concepts in Current Electricity, such as the relationship between voltage, current, and resistance, and properties of conductive materials.

Tips

Common mistakes include misinterpreting the effect of resistors in series or parallel and misunderstanding the units of electrical quantities.

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